Lubricator.



N0.'834,068. PATENT ED 23, 1906.

c. E; 'MbGAPFREY. LUBRIGATOR.

APPLICATION FILED JAN. 25. 1906.

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mwlvron' Cfiazieal? ATTORNEYS CHARLES E. MOCAFFREY, OF WINSTED,CONNECTICUT.

LUBRICATOR.

v No. 83%,068.

Specification of Letters Patent.

Patented Oct. 23, 1906.

- Application filed January 25, 1906- Serial No; 297.768. 2

resident of Winsted, in the county of Litch- 5 field and State ofConnecticut, have invented a new and Improved'Lubricator, of which thefollowing is a full, clear, and exact description. 1

- The object of the invention is to provide a new and improvedlubricator, more especially designed for use on the steam-cylinders ofrock-drills and other steam-actuated machines and arranged to preventleakage and waste of the lubricant, to insure regular 15 feed of thelubricant in predetermined quantities, and to allow of readily refillingwith lubricant without stopping the machine to which the lubricator isapplied.

The invention consists of novel features and parts and combinations ofthe same,

which will be more fully described herein after and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this'specification, in whichsimilar characters of reference indicate correspondingpartsin both theviews.

Figure 1 is a sectional side elevation of the improvement; and Fig. 2.isa sectional plan view of the same on the line 2 2 of Fig. 1.

The reservoir A for containing the lubricant is provided on its bottom Awith a threaded offset A on which screws the casing B of a needle-valveB, having its outlet end B threaded for convenient connection with thesteam-cylinder of the rock-drill or other steam-actuated machine onwhich the lubricator is to be used. In the bottom A of the reservoir Aare formed. oil-apertures A through which the lubricant in the reservoirA flows to the oflset A and the needle-valve B for the latter to feedthe lubricant in minute quantities by way of the outlet B to thesteam-cylinder on which the lubricator is to be used. i

The top A of the reservoir A is rovided with a threaded offset A onwhich screws the casing C of a filling and closing device C, providedwith a globe or gate valve D under the control of the operator and alsowith a screw-plug E, likewise under the control of the operator, forclosing the top of the easing C.

When the lubricator is attached to the and steam is admitted to the saidcylinder and the needle-valve B is opened, then steam passes by way ofthe needle-valve B and the apertures A into the reservoirA and throughthe lubricant contained therein to exert a pressure on the lubricant,and thereby cause the latter to flow through the apertures A and theneedle-valve B to the steam-cylinder and the part to be lubricated. Theamount of lubricant passing from the reservoir A to the part to belubricated is regulated by the needle-valve B.

When the rock drill is stopped, the steampressure in the reservoir Aceases and further outflow of lubricant now ceases even if theneedle-valve B is left open, as the minute apertures A and the minuteopening in the needle-valve B hinder the outflow. of the thicklubricant. In case one of the apertures A should become clogged whilethe rockdrill is at a standstill then the other aperture A permitsentrance of steam to the reservoir A as soon as the rock-drill is againstarted, and the steam-pressure now again exerted on the lubricantcauses the latter to forcibly clear the clogged-up aperture, thuskeeping the lubricator in proper working condition.

As the lubricant contained in the reservoir A is under steam-pressureand the top of the reservoir A is closed by both the valve D and theplug E, it is evident that the steam is not liable to force the oil outof the reservoir A by way of the filling and closing device C, as is sofrequently the case in lubricators as heretofore constructed.

It is understood that by having both the valve D and the plug E a doubleclosing device is provided for preventing any escape and waste of oil byway of the said device.

When it is desired to refill the reservoir A with lubricant, it is onlynecessary for the operator to temporarily close the needle-valve B, thento open the normally closed valve D and to unscrew the plug E, so as toallow ofpassing lubricant through the casing C into the reservoir A.When the latter has been refilled, then the valve D is again closed andthe plug E is replaced, after which the needlevalve B is o ened thedesired distance to again allow the lubricant to feed in properquantities to the cylinder of the machine on which the lubricator isapplied.

I steam-cylinder of a rock-drill, for instance,

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A lubricator for steam rock-drills and othersteam-actuated machines, comprising a reservoir for containing thelubricant, a needle-valve casing attached to the bottom of the saidreservoir and connected with the interior thereof by small apertures inthe bottom of the reservoir, the discharge end of the casing beingarranged for connection with the part to be lubricated, and a fillingand closing device for the top of the reservoir.

2. A lubricator for steam rock-dr1lls and other steam-actuated machines,comprising a reservoir for containing the lubricant, a

